Authenticated Chinese Porcelain For Sale

The Rooster weighs 6 and 3/4 pounds. It measures 14" high, 13 1/2" from beak to tail and 8 1/2 inches wide at it's feet.
Since I don't recognize this mark either I passed the question on to Mr. Simon Ng at the City University of Hong Kong, who indicated that the mark can be read as YA WAN? ZHEN CHUANG, which then would translate as "Delicate Collectable Precious Treasure".
In his opinion it looks like a modern piece art work mark, or a personal seal for a collector's personal identification use.
This rooster is very interesting and of a remarkable integrity. From the looks of it I would not rule out a late Qing dynasty date for it, and a considerably value.
Sincerely,
This information is given as an example of private conversation only and is not intended to be used as a promotion of any individual piece. All opinions are the authors and ar given as such with all hazards of judging anything from a photo. Copyright © Jan-Erik Nilsson, Göteborg 2000.
Strange mark
Can you help me identify this mark. It is on the bottom of this rooster shaped bowl and I cannot find a mark even similar to it on any sight.
Unusual Collector's or Private Kiln seal
Jan-Erik Nilsson
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